Bitcoin Mining

Bitcoin mining has evolved from something a person could do on a laptop in 2009 to a global industrial operation.

Today, mining is dominated by large facilities — warehouses filled with specialised hardware called ASICs (Application-Specific Integrated Circuits) designed exclusively for Bitcoin mining. These machines run continuously, consuming significant electricity, competing to find the next block and earn the reward.

After China’s 2021 mining ban displaced a majority of global hash rate, the geography redistributed dramatically. The United States became the world’s largest Bitcoin mining country, with operations concentrated in Texas, Kentucky, and Georgia. Kazakhstan, Russia, Canada, and several other countries also hold significant share.

The economics of mining are driven by two variables: the Bitcoin price and the cost of electricity. Cheap electricity is the competitive advantage that determines who can mine profitably. This is why mining operations are frequently found near renewable energy sources — hydro in Canada and Scandinavia, geothermal in Iceland and El Salvador, stranded natural gas in the US.

The environmental debate around Bitcoin mining often overlooks the nuance here. Many mining operations specifically seek out stranded or curtailed energy — power that would otherwise be wasted — because it’s cheap. The relationship between Bitcoin mining and renewable energy is more complicated than the simple criticism suggests.

What mining does indisputably: it secures the network. The enormous computational power dedicated to Bitcoin mining is what makes rewriting the blockchain’s history practically impossible. The energy expense isn’t waste — it’s the cost of trustless security.

Tomorrow: the energy debate — what the data actually shows.

— The Daily Bit